A photopolymerization initiator having as an active component thereof a benzophenone group-containing polyperoxyester represented by the general formula:
wherein R1 and RI' independently stand for a tertiary alkyl group of 4 to 8 carbon atoms or a tertiary aralkyl group of 9 to 12 carbon atoms and R2 and R2' independently stand for a hydrogen atom, a tertiary alkoxy group of 4 to 8 carbon atoms, or a tertiary aralkyloxy group of 9 to 12 carbon atoms and a method for the photopolymerization of a radically polymerizable unsaturated compound by the steps of adding the aforementioned photopolymerization initiator to the aforementioned compound and expos- ing the resultant mixture to light.
一种光聚合
引发剂,其活性成分为由通式表示的含
二苯甲酮基团的聚过氧酯:
其中R1和RI'分别代表4至8个碳原子的叔烷基或9至12个碳原子的叔烷氧基,R2和R2'分别代表氢原子、4至8个碳原子的叔烷氧基或9至12个碳原子的叔烷氧基、或 9 至 12 个碳原子的叔级烷氧基,以及一种通过向上述化合物中加入上述光聚合
引发剂并将所 得混合物置于光照下的步骤对可辐射聚合的不饱和化合物进行光聚合的方法。